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Old 05-08-2006, 01:05 PM
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Join Date: Apr 2006
Location: Minneapolis, MN
Posts: 13
High RPM at cruising speed

Hi,

I have an 84 300D Turbo Diesel. On other posts, I see that I should be about 2600 RPM at 60 MPH. I'm at or a little over 3000 at 60. At 70, it's about 3600. Is that too high? The car sounds like it should shift into a higher gear. The final gear shift is a little before 40, but I can't say for sure it that is the highest gear.

My shifting is pretty good, a little hard going into second, smooth for the next shift, often an immediate shift into the next gear. I've adjusted the Bowden cable to remove slack, verified that I have a steady 12" to the Vacuum Modulator at idle, down to 1-2" at full throttle. I also turned the T in the modulator CW two turns after I bought it to reduce flaring. A couple weeks ago I disconnected the switch beneath the gas pedal (it shifted the same), but I haven't done this recently.

Possibly unrelated issues are that the fluid level is higher than Max when checking a warm engine at idle, and that I have an intermittant fluid leak that I'm currently diagnosing.

Thanks for your help, Fred
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